Signaling high-level information in video and image coding

2. The video decoding method of claim 1, further comprising: bypassing parsing picture header syntax elements that are not associated with the one or more types of slices present in the current picture that are identified by the set of slice information syntax elements.

3. The video decoding method of claim 1, wherein the set of slice information syntax elements indicates whether a particular type of slice is allowed to be present in the current picture.

4. The video decoding method of claim 1, wherein the set of slice information syntax elements comprises one or more syntax elements for indicating whether a first type of slice is allowed to be present in the current picture and (ii) whether a second, different type of slice is allowed to be present in the current picture.

5. The video decoding method of claim 4, wherein a slice of the first type of slices does not refer to information in pictures other than the current picture and a slice of the second type of slices refers to information in pictures other than the current picture.

6. The video decoding method of claim 1, wherein the parsing of the slice header comprises parsing one or more syntax elements in the slice header when the multi-slice-type syntax element indicates that the current picture is allowed to include slices of more than one slice types.

7. The video decoding method of claim 1, wherein the current picture refers to a picture parameter set (PPS) that includes a PPS syntax element that indicates whether slices of different slice types are allowed in the current picture, and wherein the multi-slice-type syntax element is parsed when the PPS syntax element indicates that slices of more than one slice types are allowed.